yashsingh1/xdaforums huggingface dataset:
[Lenovo Vibe K4 Note Questions & Answers] spikywits:
I think bootloader is not locked from what I could see in developer settings it is unlocked.
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Enable oem unlocking option , then only it will allow you to perform fastboot command
[Lenovo Vibe K4 Note Questions & Answers] shameet:
And how to unlock oem I too know that I want a way ...can we do like nexus device? They have same type of option in developers
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Only one command is enough to unlock bootloader for our k4 note. "Fastboot oem unlock " and follow onscreen instructions
[Lenovo Vibe K4 Note Questions & Answers] shameet:
And how to go in fastboot of Lenovo k4 note?
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
adb reboot-bootloader

---------- Post added at 09:40 AM ---------- Previous post was at 09:38 AM ----------

Wait for few minutes, and enter adb devices, it will show device id. I tried to unlock but failed
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Please explain it I don't understand.. :(
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Refer this thread only for unlock bootloader, it has same chipset. http://xdaforums.com/android/development/root-wiko-fever-t3242640
[Lenovo Vibe K4 Note Questions & Answers] panwar878:
I root my phone with kingroot. If I unlock bootloader with this method.. what's happened with my phone. Everything is OK or not.... Or I unroot before unlock bootloader
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
I prefer unroot before bootloader unlock
[Lenovo Vibe K4 Note Questions & Answers] panwar878:
Thanx buddy
[Lenovo Vibe K4 Note Questions & Answers] shameet:
How can I unroot when on KingRoot it's not switching to supersu
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
There's an option in Kingroot settings to unroot. Click it, and it's done.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Yes thanks I did but still not getting ota updates how can I get that??
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Did you try to unlock the bootloader, I'm getting error message " unlock operation is not allowed" , and I have already enabled oem unlocking under developer settings.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
I didn't got the instructions of how to do that

Many are saying we need to make a scatter file and try. Tried tht but it's not recognizing my phone.. Waiting for a perfect way for unlocking bootloader.

Can u say now how to get ota update after unrooting?
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
As usual go to about phone - > system update. I've also unrooted to try unlock bootloader, failed again. Rooted using kingroot, shifted to supersu and now I'm able to receive updates
[Lenovo Vibe K4 Note Questions & Answers] shameet:
How did you shifted to supersu?
[Lenovo Vibe K4 Note Questions & Answers] shameet:
I already got 40mb update when I first got phone

are there any new updates after that?
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Refer this thread to switch to supersu

http://xdaforums.com/general/general/lenovo-k4-note-replace-kingroot-supersu-t3314955

There is no updates available for our device after that update.

---------- Post added at 10:01 PM ---------- Previous post was at 09:41 PM ----------

I think someone else on thread unlocked k4 note bootloader http://forum.gsmhosting.com/vbb/f296/lenovo-a7010a48-frp-unlock-done-2053066/
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Thanks for the news that it didn't got upgraded since then but I saw a video and that guy got a upgrade of 38mb file so what you think why we didn't got that upgrade?

One more thing, when I use ucbrowser on phone it replies back whatever I touch can u tell me a way to stop it, it's annoying
[Lenovo Vibe K4 Note Questions & Answers] raavanan:
Settings - > accessibility - > talk back, turn off this service, Problem solved.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Did but still its same.. Any other way to know?
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Remember it has an efuse so be careful while trying to unlock bootloader.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
How to unlock do you have a way to do it??
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Why you need to unlock bootloader?

Moreover it was Motorola who brought efuse and now moto is under lenovo.

So they will absolutely be using efuse technology to prevent customisation of the phone.

+ i remember there were some softwares for HTC,Sony to unlock bootloaders. You may try if they work.
[Lenovo Vibe K4 Note Questions & Answers] Virus0044:
Hi, can you please explain how you rooted your K4 note. Coz I'm so desperately trying to root my k4 but no success yet.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
High patience is required bro.

Just check out here

http://xdaforums.com/android/help/root-lenovo-vibe-k4-note-t3313481
[Lenovo Vibe K4 Note Questions & Answers] spikywits:
Did anyone get supersu working and persistent across reboots? I rooted with Kingroot and installed supersu but the root thing lost after I rebooted the device.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Even i also wanted to replace kingroot with supersu .but believe me after using kingroot for more than 5 days i left my plan to replace it.

Its good and also it removes any leftouts of root detection in mobile side by side + try to repair su binary if any problem exists.

Moreover purify app is also good( you may uninstall if you want)

I recommend it to use it for at least some days you will be addicted to it.

But if you want to replace do this

***do at your own risk and try only if you have stock rom in your pc

Download supersu 2.65

Manually replace supersu su binary in bin as well as xbin . create a folder SuperSU in system/app and place supersu apk in it with a file explorer.

Set permissions

Apk- 644 its folder 755

Su binary,sukernel,supolicy in bin & xbin 755

Libsupol.so in lib and lib64 folder and perm-644

& reboot

***It may or may not work.

*** don't reboot before full work done as you may loose root permissions

***may stuck in bootloop but you may give a try untill its custom recovery doesn't come.

Heres the file http://download.chainfire.eu/supersu-stable

Your su binary will be in ARM64 folder
[Lenovo Vibe K4 Note Questions & Answers] spikywits:
The reason I want to switch to supersu is because of app compatibility. Many apps complain like supersu not detected or busybox not installed. Since we do not have custom recovery flashing zips is not possible this time however app like flashfire allows us do that unfortunately it's not compatible with kingroot:(
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Then you may try the method. It will work but if fails try restarting by pressing power button for 10 sec. Or clearing data.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
I want to tell all of you who are trying to replace kingroot with supersu.

I will say one thing -Don't try without backup.

Moreover there was a thread by someone who shared how to get supersu on your k4 note.

Well i tried it but stuck in bootloop and had to redownload all images again via flash tool.

I tried it two times but no success. Maybe i was wrong at somewhere but i don't think so because we have to run a script only but it got me into bootloop.

So wait untill custom recovery is there.

Friends we should only focus on bootloader unlocking.

Moreover if someone has good internet speed please try mtk recovery porting tools. By CTR,TWRP,Philz Touch recovery.

They require root shell for working and you can easily get it .but one of them even didn't require it at all so have a try.

---------- Post added at 07:54 AM ---------- Previous post was at 07:45 AM ----------

UPDATE:

As i was trying i just did this as a fun

fastboot oem lock

And the command worked

And asked to lock bootloader by pressing vol + . I did it and it locked the already locked bootloader and cleared all my data..

Moreover maybe it require a code for unlock like fastboot oem unlock ***** . may be
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Guys I got upgrade of 38mb but whenever I am installing it on reboot it shows invalid recovery.img or boot.img and installation failed after rebooting is done what should I do??
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Let me check it.

Is your rom untouched before update installation i.e. not rooted

Even sometimes unrooting doesn't work .

You should try on fresh installed new rom

---------- Post added at 10:00 PM ---------- Previous post was at 09:27 PM ----------

Here is the next 38mb update link

http://phonedl.ota.lenovomm.com/dls...OW_TO_A7010a48_S150_160219_ROW_WCBBBB28A6.zip

Or you can easily download via any browser here

https://userscloud.com/mnxxf6s4pmnu
[Lenovo Vibe K4 Note Questions & Answers] shameet:
It's not working is there a way to put fresh phone firmware in phone without stock recovery because I don't want to end up in a bootloop or bricked without stock recovery.... Plz help I want it just as a new device
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Did you got other recovery working?

---------- Post added at 10:31 PM ---------- Previous post was at 10:21 PM ----------

Moreover its much easier .

Just unpack your stock rom zip file there will be flash tool.exe

Open &select scatter file in target bin folder .

After processing completes.

Untick recovery

And click download

Connect your switched off phone to pc and there you go

Just remember select download only mode.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
I know that but without recovery can I do that right on my system?? Because I cannot wipe it.. Will it work?
[Lenovo Vibe K4 Note Questions & Answers] shameet:
How can I unpack the rom
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Try dsixda kitchen

+ 38 mb update is working fine.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Guys I my imei number became invalid is there a way to get them back working.. Tried mtk engineering can't find cdm service anywhere what should I do?
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Try SN write tool.

Your model's database files will be in stock rom folder which are required by tool.

You can get it here

https://userscloud.com/ky06lux2u911

Use instructions-

Step 1: Download and extract SN Write tool on your computer. After extracting you will be able to see the following files:

Step 2: Now, Open SN Writer.exe.

Step 3: Once SN Write Tool is launched, you will be able to see the following screen:

Step 4: Now, Click on the ComPort and select USB VCOM.

Step 5: Now, Click on Target Type and select Smart Phone (only if you want to write IMEI on Smartphone. If you want to write IMEI on FeaturePhone, then select FeaturePhone option).

Step 6: Now, click on System Config Button.

Step 7: Once System Config is launched, Select IMEI, BT Address and Wifi Address in Write Option.

Step 8: If you have Dual SIM device, then select Dual IMEI Option (if you have single SIM device then dont select any option).

Step 9: Now, Under the Database File Option, Add the “MD1_DB” and “AP_DB” (both files comes with the firmware of your device).

Step 10: Now, Click on Save Button.

Step 11: Now, Click on Start Button.

Step 12: Now, Under the Scan Data write the IMEI_1 and IMEI_2, Bluetooth Address, Wifi Address and click on OK button.

Step 13: Now, you can connect the phone through USB after switch off the phone and plug out the battery, and it will appear situation as follows:

Step 14: Once, IMEI writing is finished you will be able to see the Green Pass Message.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
First thing feature phone or smartphone.. Second I didn't have backup of my phone so Wifi address and Bluetooth address are not my phones( Wifi address keeps changing).. Other thing is ok do I require root or not and if I go to Lenovo service center will they do this stuff for me because i tried it already:(
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Select smartphone

Just flash imei1 &imei2 only.rest will get something automatically.

Just copy the imei from your device box or invoice bill.

Your warranty may be void. As the removal of imei is due to your mistake. And they may charge you for this + you may not get your warranty for rest.

Just try the above method you will be successful. Give it a try bro.

If something happens post it here i will sort out it.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Alright bro last one when should I connect phone to pc and in what state?
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Same usb vcom port as required by sp flash tool.

Switch off and connect after click write
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Imei working fine how to change serial number it's showing 00000000
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Same tool may be working otherwise

Try one of these versions

https://userscloud.com/kr5alt14nlvp

https://userscloud.com/s5ufkal3973f

https://userscloud.com/73vnak21fuvh

https://userscloud.com/526hiaiyrawj

Or try this tool

https://userscloud.com/k9a0hesl0hse
[Lenovo Vibe K4 Note Questions & Answers] shameet:
Links 4-5 working for serial number but prob is link 4 is telling s/n should be 15digit and on no link5 I don't understand what to do when I connect phone to pc in switch off.. Takes me to meta mode and as u said before I did that it failed my s/n is just 8digits what should I do??
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
I checked ny phone settings>>about phone>>status

There shows serial number

SN- 8digits

PN-23 digits

SN is written on box also

Try adding 0s before
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
Sorry for offtopic-ish, I see you really know your stuff :) any idea why on a6010 with a6000 firmware I cannot get GSM signal? IMEI/serial are there. Cannot switch off 4G in menu. I cannot find a 8GB a6010 only 16GB version, that I cannot flash using QDownloader.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Have you tried manual search in network setting

Does it show any 2g network there?

Did you tried factory reset in backup &reset?

Which processor do u have & processor model?
[Lenovo Vibe K4 Note Questions & Answers] shameet:
I tried on sn writer tool it was showing s/n don't match to imei and on imei and sn writer tool I don't know what to do when I connect device to pc and it goes to meta mode screen, and where can I find PN 23 digits I don't get that
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
It says GSM 2G but after flashing another one. The previous flash version one was blank (greyed out without 2G)

At more I have Enable 4G which is on and I cannot switch it off.

I tried factory reset.

Qualcomm MSM8916 Snapdragon 410

Oh, and on the previous version I tried to search manual network and it gave me an error. I saw with uncle...?tools that the radio is off. It's odd as It detects the sim, the number from the sim automatically, but it says No service. - Orange.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Maybe your phone is locked to a certain provider

Did you tried changing sims.

If its dual sim does both sims show no network.
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
It's not locked, and even so, I am using the same sim( cards).

I even tried to change them and still nothing.

How could I flash the radio?
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
If you have stock rom try flashing via Qfil.exe found in QPST Tools
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
I can't find it. Only the 16GB version which is not working. All I have that works are these 8GB A6000, but from none the radio works.

I found a tutorial how to flash the radio with modem.img but it says the partition does not exist..
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Qfil tool is present in qpst tools 2.7.422 in :drive/programfiles/qualcomm/qpst/bin/qfil.exe

Did you tried

fastboot flash radio radio.img
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
I don't have radio.img but when I tried to flash radio modem.img it said: error remote partition table doesn't exit.

And after I've flashed the modem.img and the other 2 .bins, it keep on flashing. Like it goes in and out of standby. I can access the menu if I wait to see anything between the flashes.

L.E. is there a way I can get in touch with you directly? Via skype or something? I will make one post with everything I tried. It would speed up the process.
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
I tried with qfil, but it won't pass, as it will get some errors at the very beginning.

The errors are:

Sahara Version:0
Start Sending Programmer
Download Fail:System.Exception: Unable to download Flash Programmer using Sahara Protocol
at QC.QMSLPhone.Phone.QPHONEMS_SaharaArmPrgDownload(String sFileName)
at QC.SwDownloadDLL.SwDownload.QPHONEMSSaharaDownloadArmPrg(UInt64& version, String armPrgPath)
Download Fail:Sahara FailSahara Fail
Finish Download

But if I replace my A6010 firmware (16gb) with one from A6000 of 8GB it will work flawlessly. The only problem is the GSM.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Sorry but i am totally confused .

Which phone do u really have?

Why are you flashing other phone firmware if both have same versions with same vibe ui (no need at all i think)

+i think only a6000 have 8gb &16gb variants but a6010 has only camera changes with normal & + versions memory is same-16gb

Moreover i think a6000 has 1gb ram only. But a6000+ has 2gb ram same as a6010 & a6010+.
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
I have A6010, but I can only use A6000 to flash. If I try to use A6010's 16GB verison, as my phone is only 8GB, it won't flash!

I cannot find a 8GB firmware...

And with the firmware from A6000 it works okay, without GSM! I need to at least fix the GSM, please.

Is there a way to create a firmware from the open source that lenovo has for download on their support site?
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Share the lenovo support site link for your device.

I wiil try to check it.
[Lenovo Vibe K4 Note Questions & Answers] ramisumi:
Rooted and working SuperSu lenovo vibe k4 note

Till Today SuperSU was not updating binary. But after rooted with kingroot v4.80, then the procedure here shown with 'Terminal Emulator' and now I have updated SuperSU and rooted fully Lenovo K4 Note, Thanks for the help provided here. Thanks to XDA. I'm looking for a working custom recovery now.
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
http://support.lenovo.com/ro/ro/products/phones/a-series/a6010?linkTrack=Homepage:Body_Currently%20Selected%20Product&beta=true
https://download.lenovo.com/consumer/open_source_code/lenovo_a6010_osc_201509.tar.gz

I've managed to install CW recovery, but after I;ve installed CM13, which should have fixed the SIM problem, it gets stuck on logo if I try to go to recovery again..

Don't ask me how I got in CW recovery in the first place, since as I don't know. I did the usual fastboot flash recovery recovery.img
[Lenovo Vibe K4 Note Questions & Answers] theanimatedman:
No OTA updates after Unroot.

So my K4 note can receive update files. and when installing it shows install failed (after booting in lenovo recovery). Is there any way to fix this? also is it possible to get updates even after root? Also I would like to keep Superuser than kingroot.

Any direction how to do that will be helpful.. Thanks in Advance
[Lenovo Vibe K4 Note Questions & Answers] spikywits:
You will not be able to flash OTA updates anytime since you rooted your phone. There is no workaround for it unless you flash the stock rom which is a risky process.

I recommend all not to root k4 note until someone come up with a proper custom recovery to overcome all this.
[Lenovo Vibe K4 Note Questions & Answers] nicky thakur:
Please help to get recovery file
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Sorry bro

I can't help further. I had a Qualcomm phone last year while trying to put custom rom .i bricked it but luckily had its warranty so repaired it by service centre easily.

If you thought of giving your phone in service centre i recommend bricking it or making it bootloop as it may help you make any excuse to them. But if they see custom rom they can deny warranty.

But i will try to sort your problem so some other can also get out of situation you were caught in.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
My camera is processing pink photos when using flash what should I do(Lenovo k4 note)
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
Thank you!
[Lenovo Vibe K4 Note Questions & Answers] hypergamer1231:
So far have managed to make a insecure boot.img of the latest rom but am unable to flash it as the BL is locked. Somehow if someone can unlock the bootloader I can port roms!
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Right Bro thats the initial problem we are facing -the locked bootloader.

There is also news that newer MI's redmi note 3 will also come with locked bootloader .

We are too trying on unlocking bootloader.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Did you tried resetting camera settings - the option in camera settings.
[Lenovo Vibe K4 Note Questions & Answers] shameet:
I tried it but it got fixed by mtk engineering mode
[Lenovo Vibe K4 Note Questions & Answers] Ayan Uchiha Choudhury:
anybody finally found a way to install custom recovery on k4?? :/ can't install xposed without custom recovry. :(
[Lenovo Vibe K4 Note Questions & Answers] hypergamer1231:
Nothing can be done until someone unlocks the bootloader
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
Soo... I managed to put it back original A6010 stock rom but I have null or 000000000000 at IMEIs. Is there a way to write the IMEIs back, without a physical device/box?

I saw an option to export a file and search inside of it with a hexeditor, but what to search, since there is NO IMEI?
[Lenovo Vibe K4 Note Questions & Answers] spikywits:
If you are rooted and replaced kingroot with supersu then you may want to give a try on flashfire which can help you install flashable zips. I installed xposed on my meizu m2 note that way which did not have a custom recovery.
[Lenovo Vibe K4 Note Questions & Answers] chsaiteja98:
i have searched in google and got twrp recovery

go to google and search for custom recovery for lenovo vibe k4 note

there is video in the video section in russian or some other language which got the links for twrp recovery for k4 note and

codes to unlock bootloader

follow that and ull get custom recovery on your lenovo k4 note

:good::good::good::good::good::cowboy::cowboy::cowboy::cowboy::D:D:o:o:D:D:D:good::laugh:
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
You have to find for .qcn file which contains imei nos.

By the way which software you used to flash stock rom.
[Lenovo Vibe K4 Note Questions & Answers] mvandrei:
I managed to find the stock rom rom a russian forum, flashed it but it's the same. I could save a backup of my actual .qcn file but I don't know how to find the empty IMEI in hex..
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Don't try that Russian method

It will brick your phone.

I repeat don't try that method.

It was not successful.
[Lenovo Vibe K4 Note Questions & Answers] gursewak.10:
Did you flashed it?

I don't think so!

Because you didn't checked it before posting here.

And the result-

Somewhere someone has bricked his phone(may or may not be)

Please don't post before checking it yourself or testing on your phone.

More over its for a7010a48 2gb ram+32gb variant.

We have 3gb ram+16gb